server benchmarking tools

gistfile1.txt

# Apache Benchmarking tool - ab
 
ab can simulate a high load on the server.
 
  eg: ab -n 1000 -c 10 -g test_data_1.txt http://www.your-domain.com/index.html
 
commonly used options
 
-n  number of requests. Default is 1 which is useless.
-c  concurrent requests. Default 1
-g	GNU plot output. Labels are on first line of output.
-q	Suppress progress stattus output to stderr.
-t	Time limit. Maximum number of seconds.
-A  username:password	Specify authentication credentials.
-X  proxy[:port]	Specify a proxy server.
 
# httperf
 
Httperf sends requests to the web server at a specified rate and gathers stats. Increase till one finds the saturation point.
 
Example usage:
Print performance stats for home page of your-domain.com: httperf --hog --server www.your-domain.com
Create 100 connections at a rate of 10/sec: httperf --hog --server http://www.your-domain.com/ --num-conn 100 --rate 10 --timeout 5
Generate 10 sessions at a rate of one session/sec every 2 seconds: httperf --hog --ser=www --wsess=10,5,2 --rate 1 --timeout 5
httperf command line options:
 
Command  Command Description
--hog	Use as many TCP ports as necessary to generate stats (else limited to port 1024-5000)
--num-calls	Session oriented workloads.
--max-connections=#	Limit the number of connections to that specified.
--num-calls=#	Specify the number of calls to issue on each connection before closing it.
--server host-name	Default localhost. Specify IP address of host name.
--wsess=N1,N2,X	Specify session where 
N1: number of sessions
N2: number of calls per session
X: delay between calls (sec)
--timeout	Stop if there is no response within timeout period.